body {
    margin: 0em;
    font-family: arial,sans-serif;
    overflow-wrap: break-word;
    -webkit-text-size-adjust: 100%;
    }

/* bgimage */
#topbg {
    background: url(header.jpg) no-repeat top center / cover;
    width: 100%;
    padding-top: 4em;
    padding-bottom: 56%;
}
#welcomebg {
    background: url(welcome.jpg) no-repeat top 4em center / cover;
    width: 100%;
    padding-top: 4em;
    padding-bottom: 30%;
}
#companybg {
    background: url(company.jpg) no-repeat top center / cover;
    width: 100%;
    padding-top: 4em;
    padding-bottom: 30%;
}
#businessbg {
    background: url(business.jpg) no-repeat top center / cover;
    width: 100%;
    padding-top: 4em;
    padding-bottom: 30%;
}
#entrybg {
    background: url(entry.jpg) no-repeat top center / cover;
    width: 100%;
    padding-top: 4em;
    padding-bottom: 30%;
}
#contactbg {
    background: url(contact.jpg) no-repeat top center / cover;
    width: 100%;
    padding-top: 4em;
    padding-bottom: 30%;
}
#accessbg {
    background: url(access.jpg) no-repeat top center / cover;
    width: 100%;
    padding-top: 4em;
    padding-bottom: 30%;
}

#title {
    padding:0.5em;
    font-size:2em;
    color: #000;
}

a{ color: blue; }

.text { margin: 1em; padding-bottom:4em; }
.txtc { text-align: center; }
.link-none { pointer-events: none; }

hr { border: 1px solid #ccc; }

table { width: 100%; }
th { width: 40%; text-align: right; padding-right: 0.8em; vertical-align:top; }
td { width: 60%; vertical-align:top; }

/* form */
input[type="text"], textarea  { width: 100%; }
input,textarea { padding: 0.2em; }
input[type="text"],input[type="submit"], input[type="reset"], textarea {
    background-color: #fff; border: 1px solid #ccc;
    -webkit-appearance: none; -moz-appearance: none; appearance: none;
}
input[type="submit"], input[type="reset"] { padding: 0.5em; border-color: #000; color: #fff; width: 45%; }
textarea { resize: vertical; }

/* google map */
.map {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9のアスペクト比 */
    height: 0;
}
.map iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* header menu @@=カスタマイズ可 */
header#head {
    position: fixed; /*← fixedで固定 */
}
/* .head { float: left; } */
.head {
    display: inline-block;
    vertical-align: middle;
    }

.c-header {
  align-items: center;
  background-color: #000; /* @@ */
  box-sizing: border-box;
  display: flex;
  justify-content: space-between;
  padding: 1rem 2rem; /* @@ */
  width: 100%;
  opacity: 0.8; /* 追加@@ */
}

.c-header__logo {
  color: #fff; /* @@ */
  min-width: 80px; /* @@ */
  text-decoration: none;
}

.c-header__list {
  box-sizing: border-box;
  display: flex;
  margin: 0;
  padding: 0;
}

.c-header__list-item {
  list-style: none;
  text-decoration: none;
}

.c-header__list-link {
  color: #fff; /* @@ */
  display: block;
  margin-right: 20px; /* @@ */
  text-decoration: none;
  padding: 10px 0px; /* @@ */
}

.c-header__list-link:hover {
  filter: opacity(0.6); /* @@ */
}

.c-hamburger-menu {
  position: relative;
}

@media screen and (max-width: 750px) {
  .c-hamburger-menu__list {
    background-color: #000; /* @@ */
    align-items: flex-start;
    display: flex;
    flex-direction: column;
    left: 0;
    padding: 2rem; /* @@ */
    position: absolute;
    transform: translateX(-100%);
    transition: 0.3s; /* @@ */
    top: 100%;
    width: 100%;
  }

  #hamburger:checked ~ .c-hamburger-menu__list {
    transform: translateX(0%);
    transition: 0.3s;
  }
}

.c-hamburger-menu__input {
  display: none;
}

.c-hamburger-menu__bg {
  background-color: #000; /* @@ */
  cursor: pointer;
  display: none;
  height: 100vh;
  left: 0;
  opacity: 0.4; /* @@ */
  position: absolute;
  top: 0;
  width: 100%;
  z-index: -1;
}

#hamburger:checked ~ .c-hamburger-menu__bg {
  display: block;
}

.c-hamburger-menu__button {
  display: none;
}

@media screen and (max-width: 750px) {
  .c-hamburger-menu__button {
    align-items: center;
    appearance: none;
    background-color: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 5px; /* @@ */
    height: 32px; /* @@ */
    justify-content: center;
    width: 32px; /* @@ */
  }
}

.c-hamburger-menu__button-mark {
  background-color: #fff; /* @@ */
  display: block;
  height: 1px; /* @@ */
  transition: 0.3s; /* @@ */
  width: 20px; /* @@ */
}

@media screen and (max-width: 750px) {
  #hamburger:checked
    ~ .c-hamburger-menu__button
    .c-hamburger-menu__button-mark:nth-of-type(1) {
    transform: translate(2px, 1px) rotate(45deg); /* @@ */
    transform-origin: 0%; /* @@ */
  }
  #hamburger:checked
    ~ .c-hamburger-menu__button
    .c-hamburger-menu__button-mark:nth-of-type(2) {
    opacity: 0;
  }
  #hamburger:checked
    ~ .c-hamburger-menu__button
    .c-hamburger-menu__button-mark:nth-of-type(3) {
    transform: translate(2px, 3px) rotate(-45deg); /* @@ */
    transform-origin: 0%; /* @@ */
  }
}

/* footer */
footer {
    padding: 0.8em;
    font-size: 0.8em;
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color:black;
    color:white;
    text-align: center;
    opacity: 0.8; 
}